Earthquake with magnitude of Md 2.1 on date 13-05-1991 and time 03:57:01 (Italy) in region 6 km NW Bocchigliero (CS)

A magnitude Md 2.1 earthquake occured in region: 6 km NW Bocchigliero (CS), on

  • 13-05-1991 01:57:01 (UTC)
  • 13-05-1991 03:57:01 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 39.4540, 16.7050 at 10 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

Search earthquakes: Any within 30 km radius

The values of hypocentral coordinates and magnitude may be revised at a later time as more information becomes available.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Bocchigliero CS 6 1298 1298
Cropalati CS 7 1084 2382
Caloveto CS 8 1263 3645
Longobucco CS 8 3183 6828
Paludi CS 9 1062 7890
Pietrapaola CS 10 1141 9031
Mandatoriccio CS 12 2872 11903
Campana CS 12 1813 13716
Crosia CS 14 9762 23478
Calopezzati CS 14 1369 24847
Rossano CS 15 36842 61689
Scala Coeli CS 16 1014 62703
Savelli KR 17 1271 63974

Municipalities with at least 50000 inhabitants

An earthquake occurred to
42 Km E of Cosenza (67546 inhabitants)
55 Km NW of Crotone (62178 inhabitants)
62 Km N of Catanzaro (90612 inhabitants)
63 Km NE of Lamezia Terme (70714 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000
Md 2.1 1991-05-13
01:57:01
39.454 16.705 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 140999
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1991-05-13 01:57:01 ± 0.893
Latitude 39.4540 ± 0.0290
Longitude 16.7050 ± 0.0889
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 140999

Uncertainty

Field Value
Preferred uncertainty description horizontal uncertainty
Semi-major axis of confidence ellipse (meter)
Semi-minor axis of confidence ellipse (meter)
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi)
Circular confidence region, given by single value of horizontal uncertainty (meter) 8285.6
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 220
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.7
Epicentral distance of station closest to the epicenter (degree) 0.00138
Epicentral distance of station farthest from the epicenter (degree) 0.00599
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitude information

Md:2.1

Field Value
Value 2.1
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 140999
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 19:11:38
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.GRI.Z. 1991-05-13T01:57:27.24 10.0 undecidable manual SG 199 0.666 2.11 0
--.CSI.Z. 1991-05-13T01:57:19.00 10.0 undecidable manual SG 316 0.444 0.64 0.4
--.GRI.Z. 1991-05-13T01:57:16.60 10.0 undecidable manual PG 199 0.666 0.81 0.8
--.TDS.Z. 1991-05-13T01:57:14.35 10.0 undecidable manual SG 306 0.3441 -0.56 0.5
--.CSI.Z. 1991-05-13T01:57:12.00 10.0 negative manual PG 316 0.444 0.66 2.2
--.CZI.Z. 1991-05-13T01:57:11.34 10.0 negative manual PG 242 0.4995 -0.79 1.8
--.TDS.Z. 1991-05-13T01:57:10.41 10.0 undecidable manual PG 306 0.3441 1.06 0.7
--.SE2.Z. 1991-05-13T01:57:10.10 10.0 undecidable manual PG 178 0.444 -1.03 0.7
--.ROI.Z. 1991-05-13T01:57:07.80 10.0 undecidable manual SG 317 0.1554 -0.97 0.3
--.ROI.Z. 1991-05-13T01:57:05.27 10.0 negative manual PG 317 0.1554 -0.53 2.5
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download